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How can you use the sticky tape activity to find if an object has excess charge that can be transmitted to the computer and ruin
5 answers
asked by
Sarah
1,222 views
If 0.130 g of p-aminophenol is allowed to react with excess acetic anhydride , what is the theoretical yield of acetaminophen in
4 answers
asked by
Richard
4,113 views
A gas bottle contains 0.250 mol of gas at 0.973 bar pressure. If the final pressure is 1.165 bar,
how many moles of gas were
4 answers
asked by
John
2,340 views
Three emission lines involving three energy levels in an atom occur at wavelengths x, 1.5x, and 3.0x nanometers. Which
4 answers
asked by
Jady
1,184 views
Rewrite 36582472g in units with SI prefixes
5 answers
asked by
Sam
1,604 views
Ethanol has a heat of vaporization of 38.56 KJ/Mol. And a normal boiling point of 78.4 degrees celcius.
WHAT is the vapor
4 answers
asked by
Joseph
2,246 views
Benzene has a heat of vaporization of 30.72 kj/mol and a normal boiling point of 80.1 degrees celcius.
At what temperature does
4 answers
asked by
Joseph
2,302 views
Can you also check this one, Please and thank-you!
23. Acetylsalicylic acid, commonly known as ASA, is the most widely used drug
2 answers
asked by
Jacy
1,300 views
10. Suggest how two very different variables could be manipulated to increase the percent yield of sulphur trioxide. The
1 answer
asked by
Dave
585 views
Convert 512 ft to km.
Anyone know how to do this, please? There are 3281 feet/km. In order to get it in km, you have to divide...
1 answer
asked by
Frank
495 views
Nitrogen oxide (NO) has been found to be a key component in the many biological processes. It also can react with oxygen to give
3 answers
asked by
Christopher
4,363 views
what is the six guidelines in determining significant figures?
Thanks:-) With a decimal: from the decimal go to the right side of
1 answer
asked by
James
457 views
Why do metal oxides when dissolving in water make an alkaline solution?
And Why non-metal oxides dissolve in water and become
2 answers
asked by
Saad
640 views
What is the name for H3CF?
1 answer
asked by
Anonymous
299 views
What is the balanced equation for ethane?
2 answers
asked by
Elena
521 views
How would one cheak if the water they are drinking is clean?
7 answers
asked by
Lena
319 views
How would someone extract silver from silver nitrate?
*silver isn't soluable in water so I was thinking I wouldn't be able to do
10 answers
asked by
Lena
568 views
2SO2(g) + O2(g) ---> 2SO3
It says that 12.0 L of sodium trioxide are produced at 100 degrees celcius. What volume of oxygen is
4 answers
asked by
Lena
576 views
When you write out Manganese II, would it be 2Mn or Mn2 (that was supposed to be a subscript). Thank you.
1 answer
asked by
Gwen
313 views
I'm trying to balance this chemical equation but it's just not working.
C7H14O2+O2 yields CO2 + H20 I'm having problems getting
3 answers
asked by
Mariette
1,354 views
An aspirin tablet weighing 0.400 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved
the
4 answers
asked by
Joanne
2,026 views
Cu + AgNO3 ---> Ag + Cu(NO3)2 Why is there a two after NO3? Thanks.
4 answers
asked by
Em
651 views
As a go through my study guide, I'm finding that I'm getting esters and normal stoic acids confused. How can you tell when a
4 answers
asked by
Susanne
429 views
On the topic of esters, if my Ester is
CH3-C(double bond directly downward below the C)-O-CH3, would it be methyl ethanoate or
2 answers
asked by
Susanne
454 views
Here's a multiple choice on a worksheet I've been given. The thing is the answers make no sense.
Condensation reactions occur
1 answer
asked by
Tabetha
503 views
Is the number of branches or carbons more important when determining the boiling point of a substance? I have CH3-CH3 and C3-CH
4 answers
asked by
Gwen
523 views
Is a substance written HO-C (with a double bond connecting the C to an O north of it)-CH2-CH3 Ethenoic Acid? Thanks!
1 answer
asked by
Gwen
384 views
How do you name an ester? I know they end in -anoate. But when you have one like CH3-C(double bond to O going downward)-O-CH3,
2 answers
asked by
Gwen
506 views
Would the property "reacts in water" be physical or chemical? Thanks.
1 answer
asked by
Mora
376 views
Which defines what element the atom is? a. protons b. neutrons or d. electrons. I think it might be neutrons, but can you verify
1 answer
asked by
Mora
352 views
What is the diffrence between relative abundance and percent abundance?
4 answers
asked by
Sarah
2,227 views
How would you adjust the instrument for GC analysis to get better resolution? Please discuss.
What is another GC detector and
3 answers
asked by
Chelsea
321 views
If you had a mixture of benzene, toluene, and m-xylene, what would be the expected order of retention times? Explain.
I know
2 answers
asked by
Chelsea
1,138 views
how could you use infrared spectroscopy to detect the presence of ethanol in an oxygenated fuel?
I think it is either a C-O
4 answers
asked by
Chelsea
588 views
How can you use the sticky tape activity to find if an object has excess charge that can be transmitted to the computer and ruin
1 answer
asked by
Sarah
387 views
Why is it not possible to achieve a complete separation of the ethanol from the water in the clarified reaction mixture via
2 answers
asked by
Chelsea
507 views
Ethanol has a heat of vaporization of 38.56 KJ/Mol. And a normal boiling point of 78.4 degrees celcius.
WHAT is the vapor
4 answers
asked by
Joseph
1,036 views
Benzene has a heat of vaporization of 30.72 kj/mol and a normal boiling point of 80.1 degrees celcius.
At what temperature does
4 answers
asked by
Joseph
1,657 views
The experiment requires 1 mg per ml of iron (Fe3+). What mass of iron (III) nitrate hexahydrate (Fe(NO3) - 6H2O) would you need
1 answer
asked by
Purple
466 views
If 229 g of Pb(NO3)2 and 190 mL of 1.68 M aqueous NaI are reacted stoichiometrically according to the balanced equation, how
2 answers
asked by
Todd
551 views
can anyone give me a good web site to review
Alcohols Aldehydes o Ethers o Ketones o Carboxylic acid o Esters o Amines o Amides
1 answer
asked by
blue
350 views
Suppose that 55 mL of 0.2 M LiOH and 55 mL of 0.3 M HNO2 are mixed.
What is the K for the dominant equilibrium in terms of Ka's,
1 answer
asked by
Tiffany
439 views
Using condensed electron configurations, give reactions showing the formation of the common ions of the following elements.
2 answers
asked by
Lucas
622 views
λ for one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value in the Rydberg equation to calculate the RH value
3 answers
asked by
Toni
2,111 views
Acetic acid (CH3COOH) reacts with isopentyl alcohol (C5H12O) to form isopentyl acetate (C7H14O2), a fragrant substance with the
4 answers
asked by
Dave
1,378 views
what is the volume of 4 moles of a gas if the pressure is 3.5 atm and the pressure is 25C
1 answer
asked by
Saul
322 views
I was confused.
is kinetic molecular theory the same thing as ideal gas law?
1 answer
asked by
Linda
392 views
2KClO3 (s) ---> 2KCl (s) + 3O2 (g)
For every mole of KClO3 that decomposes in the above experiment, how many grams of oxygen gas
2 answers
asked by
Anonymous
716 views
2 KClO3 ----> 2 KCl + 3 O2
Suppose the "inert" material in the mixture was not really inert, but that is reacted with oxygen from
2 answers
asked by
Anonymous
494 views
Write the balanced equation given that Mg(ClO3)2 decomposes into chloride and oxygen:
2Mg(ClO3)2 --> 2MgCl2 + 3O2 So if 0.302
2 answers
asked by
Anonymous
877 views
In 1928, 1.0 g of Re was isolated from 660 kg of the ore molybenite. The percent by mass of this element in the molybenite was:
1
3 answers
asked by
Anonymous
1,395 views
I was trying to find the molecular formula for CuSO4 . XH2O.
I ended up with the ratio of 1 mol CuSO4 : 3.85 mol H20 Would I have
1 answer
asked by
Anonymous
446 views
What is the mass (in kilograms) of a cube of silver that measures 0.68 on each side, when the density of the sample is 10.5g/cm3
2 answers
asked by
nick
563 views
What is the mass (in kilograms) of a cube of silver that measures 0.68m on each side, when the density of the sample is
4 answers
asked by
nick
1,950 views
Name the Products & Reactants for:
Moving Car Evaporating puddle Electrolysis of water Baking Soda mixed with vinegar
4 answers
asked by
Sufi
396 views
I need a 64% solution of ammonium chloride. I have 99% ammonium chloride powder. How many grams of the NH4CL do i need to add to
1 answer
asked by
John
418 views
How many milliliters of water has been dispensed if the initial buret reading was 0.38 ml and the final is 24.70 ml?
1 answer
asked by
John
429 views
What is the overall stoichiometry for the reaction between iodide and peroxydisulfate ions?
2 answers
asked by
Kay.
609 views
To standardize a solution of NaOH, one uses a primary standard called potassium hydrogen phthalate (KHP). It is a monoprotic
3 answers
asked by
Anonymous!
1,906 views
N2+3H2 <-> 2NH3, The equilibrium constant for the chemical equation is Kp = 0.143 at 225 °C. Calculate the value of the Kc for
2 answers
asked by
Anonymous!!
738 views
At equilibrium, the concentrations in this system were found to be [N2]=[O2]=0.200 M and [NO]=0.500 M.
N2 + O2= 2NO If more NO is
2 answers
asked by
B
544 views
in the equation Ba(NO3)2(aq)+Na2SO4 (aq) →BaSO4(s) + Na2(NO3)2 .......is Na2(NO3)2 aqueous?
2 answers
asked by
Anonymous.
699 views
Why wouldn't CH3OH be an Arrhenius base?
2 answers
asked by
anonymous.
669 views
How can I determine the concentration of HCl remaining in the flask after back titration?
Thank you!! I have been given weight of
4 answers
asked by
Help!!
717 views
Sorry if I confused you. I miss-wrote my question.
My question was: How can I determine the concentration of HCl remaining in the
2 answers
asked by
Help!!
596 views
A balloon has a volume of 240 mL at room temperature (25°C or 298 K). What temperature would you have to heat or cool the
2 answers
asked by
Sandee
547 views
How many moles of NH3 are in a flask with a volume of 60.8 L at a pressure of 73 kPa and a temperature of 250°C?
3 answers
asked by
Val
260 views